ISO Polymer Concrete

Product reference: 3/80

Product title: ISO Polymer Concrete

Valid from: 5th June 2006

Last reviewed: May 2019


A low shrink, isophthalic resin bonded polymer concrete, supplied as three
components for mixing on site.

Suggested use

Corrocoat ISO Polymer Concrete may be used to lay
screeds, cast slabs of up to 100mm in thickness, or
manufacture many items normally manufactured from
standard concrete. It has advantages over standard concrete
in that it is chemically resistant and has higher mechanical
strengths. Unlike standard concrete, ISO Polymer
Concrete will bond to correctly prepared concrete or steel
surfaces and me be used to repair existing concrete


Should not be used at temperatures higher than 176°F
(80°C). Should be over coated with Polyglass VE where
chemical service is arduous.

Health & safety

Before handling or using this product the material safety data
sheet should be read and all precautions observed.

Surface preparation

Concrete: Grit blast to remove surface laitance. For best
results prepare surface as per CorrocoatSurfacePreparation
SP5 and prime accordingly.
Metal: Grit blast to SSPC-SP10 (ISO 8501-1 Sa 2½) or
equivalent. Prime surface using Polyglass PPAPrimer.
Corrocoat ISO Polymer Concrete may be applied
directly on to the substrate although the adhesion will be
reduced. Priming, where possible, is advisable.

Mixing ratio

15% Base: 85% Aggregate by weight.
(Base equals 98% Resin and 2% Organic Peroxide).

Mixing procedure

Thoroughly mix the catalyst with the resin, then add the
aggregate ensuring that the product is thoroughly wetted
and mixed throughout. A heavy-duty paddle may be used to
mix the product or alternatively the product may be mixed
in certain types of mixing machine provided that the unit is
thoroughly cleaned after each mix.

Pot life

Approximately 30-40 minutes at 68°F (20°C).Will vary
dependent upon temperature and volume mix.


ISO Polymer Concrete should not be applied to
unprepared surfaces, see surface preparation above. The
concrete may be poured or trowelled in the normal
manner up to 20mm thickness where shrinkage is
restrained, or up to 100mm thickness where shrinkage is
unrestrained. Air bubbles can be removed as with
conventional concrete by vibrating and the surface can be
floated using a styrene wetted trowel.
The ISO Polymer Concrete has a high slump, and hold-up
on vertical surfaces will be very limited. It is therefore
necessary in most instances to shutter vertical surfaces.
Reinforcing bars and mesh may be used to increase
mechanical strength and crack resistance. Where these
materials are used they should be grit blasted first to remove
and oxide films and ensure good adhesion


The performance of Corrocoat ISO Polymer Concrete
will be adversely affected by the addition of solvent
thinners. The addition of styrene will increase shrinkage
rate and should not normally be used.


1 Gallon and 5 Gallon kits, or bulk supply for larger

Storage life

12 Months at temperatures at or below 75°F (24°C)
and away from direct heat sources and sunlight.
Frequent temperature cycling will shorten the shelf life.

Flash point

93°F (34°C)


May take place as soon as the previous layer has gelled and
while still tacky. Maximum over coating time 72 hours.

Hardener type / ratio

Corrocoat Catalyst P2.
1-2% by weight of base component only i.e. not total
weight. Catalyst level should be reducedat thicker DFT’s
andwhen warm ambient temperatures appertain.

Curing time

At 68°F (20°C) tack-free in 4 hours. Full cure 7 days.

Cleaning solvent

Prior to gelation – Acetone or Methyl Ethyl Ketone.